[Blood antioxidant defense in children with malignant disease. I. Plasma antioxidant activity and level of ceruloplasmin and transferrin].

In this study we examined selected elements of the antioxidant defence system in the plasma of children with the most common solid tumors (nephroblastoma, neuroblastoma, rhabdomyosarcoma, osteosarcoma). We observed a significant increase of plasma antioxidant activity (AOA) in the majority of the examined children. This factor changed during clinical… (More)